Lombardini LDW 502, Service Manual

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service manual
mod. 051135
6
H 0 5 6 , 9 2 ÷ 8 9 5 , 9 2
1 H 0 0 0 , 9 2 ÷ 8 4 9 , 8 2
A
2 - Use a micrometer to measure the
maximum dimensions of the involutes of
the intake, exhaust and injection cams (see
“Table of cam dimensions”).
Table of cam dimensions
If the dimensions of cam involutes are lower
than the values shown by 0.1mm (maximum
dimension), replace the camshaft with an
original spare.
Important
Protect the contact surfaces with lubricant
oil, to prevent them from rusting.
3 - Replace the camshaft (see “Assembling
tha camshaft”).
6.3.4 Checking and replacing the fuel
pump drive rod
To check the drive rod it is necessary to
disassemble the fuel pump.
See “Disassembling the fuel pump” for the
correct procedure.
1 - Rotate the camshaft until the drive rod is
at the most indented point.
2 - Check that the distance between the drive
rod (A) and the cylinder head is between
1.66 and 2.18mm. If the distance does not
correspond to this value, replace the drive
rod with an original spare.
3 - Assemble the fuel pump (see “Assembling
the fuel pump”).
Dimensions (mm)
Ref.
Fuel pump
OVERHAULS AND TUNING